Ответ:
а) 4/11•55/12=1•5/3=5/3 или 1²/³
б). 6•15/8=3•15/4=45/4 или 11¼
в).61/8+11/3-131/16=366/48+176/48-393/48=129/48=2³³/⁴⁸
г)5/10-4/25+3/20=50/100-16/100+15/100=49/100
д)30/7•7/4-3,36/2,3=7,50-3,36/2,3=4,14/2,3=1,8
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Ответ:
а) 4/11•55/12=1•5/3=5/3 или 1²/³
б). 6•15/8=3•15/4=45/4 или 11¼
в).61/8+11/3-131/16=366/48+176/48-393/48=129/48=2³³/⁴⁸
г)5/10-4/25+3/20=50/100-16/100+15/100=49/100
д)30/7•7/4-3,36/2,3=7,50-3,36/2,3=4,14/2,3=1,8